39BuickEight Posted April 30, 2015 Share Posted April 30, 2015 Hello everyone, we have been doing some wiring and since the fuel and ignition systems were altered on both of my cars, some of the holes in the firewall are confusing us. I was hoping someone could advise on what goes where.Here is my restoration car:and here is the parts car (easier to get all the holes in the same picture):1- Vacuum line? My parts car had a vacuum fuel pump line going though there, which of course was not original2- Vacuum line? From intake manifold?3- Speedometer cable, correct? 4- Main wiring harness and other wiring harness, but there are 3 holes in the grommet... What is the 3rd hole used for?5- Emergency brake cable (and manual throttle/choke?)6- Manual throttle/choke?I have looked for some images of other cars, but they are each a little different just like my cars were. Thanks for any assistance! Link to comment Share on other sites More sharing options...
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